Kerosene-gas burner.



B. J. MILLER & W..F. DAY.

KEROSENE GAS BURNER. APPLJjG XTION FILED JULY 20, 1914.

Patented Dec. 1,1914.

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B. J. MILLER & W. F. DAY. KEROSBNE GAS BURNER. APPLICATION FILED JULY 20, 1914,

Patented Dec. 1, 1914.

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Specification of Letters Eetent.

To all whom it may concern:

- tively convert kerosene or crude oil Be it known that we, BENJAMIN J. MILLER and \VILBUR F. DAY, citizens of the United States, residing at St. Paul, in the county of, Ramsey and State of Minnesota, have in vented new and useful Improvements in Kerosene-Gas Burners, of which the following is a specification.

- ()ur invention relates to improvements in kerosene gas burners, and its primary object is to provide means for completely vaporin ing and gasifying kerosene and other heavy or light fuel oil.

Another object is the provision of a burner. which will economically and en'ecinto gas and prevent condensate from clogging the passages in the burner.

A further object'is the construction of a burner which is applicable for use in connection with a coal stove when so desired.

In the accompanying drawings forming part of this specification, Figure l is .a perspective of our invention when applied for use in connection with a coal stove, a portion of the stove being illustrated; Fig. 2 is a plan of the burner partly broken away and in section; Fig. dis a side view, half in elevation and half in section, of the burner. Fig. 4 is a side elevation partly in section of the draft plate and fuel supply means attached to said plate, and Fig. 0 is a perspective of our invention when constructed with one burner, partly broken away.

I 2 has a vent opening 7 positioned In the drawings with which we have illustrated our invention the burner is shown When of single. or double 1 form. A single form of burner consists of an air and gas mixing chamber 2, having starting pan 3, across its lower portion. The mixing chamher 2 is formed by an upwardly and inwardly tapering wall i, integral with a sup porting plate 5 of which the pan is also an integral part. The space within the pan 3 connects with the space Within the inclosing wall 4, said pan being provided for the purpose of holding ashes upon which oil can be placed and ignited for heating the gen; erator 8 to be hereinafter described. A gas supply pipe 6 extending across the chamber centrally within said chamber. The pipe (5 extends upwardly from without the chamber 2 and is connected with said laterally extending generator 8, which projects from one side to a. point immediately above the mixing chamher 2. The generator 8 is supported by a stand 9, which is secured to the base 5, such as screws 10, said stand being formed duct 11 leading from a supply tube With 19. up into and projecting near the inner. ex

trciuity of the generator 8, so that the oil or tuei to be gasitied and refined is delivered near the inner end of the generator directly. over the hottest part of the flame issuing from above the mixing chamber 2. The portion of the generator immediately above the mixing chamber 2 is formed with a depending circular shaped spreader for trans mitting a portion ot the heat from the flame;

to the generator and forming the flame into a ring. The central inner portion of the spreader 13 is formed with a downwardly extending protuberance 1a, which also assists in spreading the flame and reducing noise. in operation air is admitted around and into the mixing chamber 2 by means of the air passages 15 and 16 lying respectively adjacent the outer and inner surfaces of the wall 4.- and by the space below the wall issuing from the pan 3. As the liquid fuel such as kerosene, distillate or crude petroleum is admitted into the generator the heat issuing from above the mixing chamber 2 increases the temperature of the walls of the generator, thus converting the liquid fuel into gas and l aving little or no condensate, said gas passing down through the pipe 6 and entering the mixing chamber 9. through the-pas 7. in this chamber 2 the gas is mixed with air and consumed above. ,Any condensate which collects during the process of starting the burner drops. into the pan where it is caught among the ashes which "Patented Dec. ii, 1914.."

either consumed or held until the-contents of the pan are removed. It will be noted that the course of the fuel. after being admitted into the hot generator 8 1s m a downward direction, thus forming a very eifective and simple means for converting the fuei into gas, the vaporization being normally complete. To start the burner combustible oil is placed on the ashes in the pan and ignited and heat from the' oil raises the temperature oithe walls of the generator, thus converting the fuel admitted into the generator into gas lihe construction is susceptible of various modifications within the scope of our invention; Figs. 2 and 3 illustrating one form in which the burner is made double instead of hers. The parts of the device together with the pans 30 and 31 are also constructed integral with a base 32. This device is particularly adapted for use in a cook stove or range, it being feasible to place the same with its stand resting upon a false bottom 33 in the fire pot on the grate 34. In this condition the burners are adapted to be positioned below a pair of thelids 35 on the top of the stove and the oil supply pipes 36' and 37- are adapted to be led into the stove through the openings in the draft plate 38. Eachof the pipes 36 and 37 is adapted to be connected with one of the ducts 23 or 24, and is provided with a valve such as 39zpositioned outside of the stove and secured to the draft plate by a pair of washers such as 40 and a lock nut 41. In usethe grate is covered around the burnerby ashes or other suitable material so that all air must pass'up through the air ducts in' the device.

In accordance with the patent statutes, we have described the principles of operation of our invention, together with the apparatus which we now consider to represent the best embodiment thereof, but we desire to have it understood that the construction shownis only illustrative and that the invention can be carried out by other means and applied to uses other than those above set forth within the scope of the following claims.

Having described our invention, what we.

claim as new'and desire to protect by Letters Patent,is: 1. In a gas generator, an air and gas mixing chamber, a gasgenerator, a fuel supply pipe delivering into said generator at a point substantially above said mixing chamber, a pipeopening into said generator at a point remote from the delivery end of said supply pipe forming a passage-way from said generator to said mixing chamber, and a receptacle associated with said mixing chamber, adapted to receive and retain liquid fuel.

2. A kerosene gas generator, comprising, in combination, a base, a standard mounted upon said base having a pair of outwardly spreading retort chambers, anair mixing chamber positioned immediately below the outer end of each of said generators, a fuel supply duct leading upwardly into each of sai generators an emptying into the hot: test part thereof immediately above the cooperating mixing chamber and a dbwir.

wardly extending gas conducting tubeleading from the inner end of each of said gen-v erators and extending outwardly across and formed with an outlet into the cofiperating mixing chamber.

3. In combination with a stove havin a grate and draft plate therein and remova 1e 1 lids in its top, abase, an air and gas mixing chamber on said base, a gas generator having a chamber extending from one side over said mixing chamber, a as conducting tube extending downwardly rom'the portion of said generating chamberaway from said air and gas mixing chamber and havin an ori' fice in its lower portion positione within said air and gas mixing chamber, a fuel supply pipe extending from a point in said generating chamber immediately above said mixing chamber downwardly and out ofsaid stove through said draft plate, a valve in saidsupply pipe outside'of said stove and means for fastening said supply pipe and its valve to said draft plate.

4. A gas generator for kerosene and other heavy'fuel liquids, comprising, in combination, a base having a wall projecting upwardly and forming an air and gas mixing chamber, said base havin openings inside and outside of said wall I01 admitting air upwardly to mix with gas in said chamber and a gas generator superimposed over said mixing chamber having a duct. for supplying fuel terminating in a tubular projection extendinglongitudinally in said generator and opening thereinto at a point near the hottest part of said generator above said mixing chamber, "a deflector on said generator immediately above said mixing chamber having a downwardly projecting centrally disposed protuberance adapted to spread the flame issuing from said mixing chamber outwardly, and a duct leading downwardly from the outer end of said generator and across and into said mixing chamber for conducting gas from said generator down into said mixing chamber.

In witness whereof, we have signed our names to this s ecification, in the presence of two subscribing witnesses.

BENJAMIN J. MILLER. WILBUR F. DAY.

Witnesses:

STELLA L. WASCHENBERGER, F. G. Baauarmr. 

